package cn.hellohao.quartz;

import org.springframework.beans.BeansException;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ApplicationContextAware;
import org.springframework.stereotype.Component;
 
@Component
public class SpringUtil implements ApplicationContextAware {
 
  private static ApplicationContext applicationContext;
 
  @Override
  public void setApplicationContext(ApplicationContext applicationContext) throws BeansException {
    if (SpringUtil.applicationContext == null) {
      SpringUtil.applicationContext = applicationContext;
    }
  }
 
  //获取applicationContext
  public static ApplicationContext getApplicationContext() {
    return applicationContext;
  }
 
  //通过name获取 Bean.
  public static Object getBean(String name) {
    return getApplicationContext().getBean(name);
  }
 
  //通过class获取Bean.
  public static <T> T getBean(Class<T> clazz) {
    return getApplicationContext().getBean(clazz);
  }
 
  //通过name,以及Clazz返回指定的Bean
  public static <T> T getBean(String name, Class<T> clazz) {
    return getApplicationContext().getBean(name, clazz);
  }
 
}